Controlling device for power-driven gear.



1:. P. 3021mm. CONTROLLING DEVIOE FOR PDWER DRIVEN GEAR. APPLIOATION FILED MAY 9, 1913.

1 086A64. Patentebl Feb. 10, 1914.

3 SHBBTB-BHBBT 1.

Mr M

6 55 {14, In I I n?! 1 a;

5 I m m I a J0 H.

6' II I 6 7 9 /;"7 f 5 5% -fnge dor E. P. ROBINSON. GQNTROLLING DEVICE FOR POWER DRIVEN GEAR.

APPLIOATION FILED MAY 9, 1913. Lflfififima Patented Feb.10, 1.914. I 3 sumwsnm s.

GDNTROLLKNG- IDEVXGE lip lieation filed Iain 9, E5913.

5:5 PUWVEELBRIVEN 3-.

Specification of Letters HEW/A2133 IlE. ROBINSON, 0F JFJIAKJDEKI, I'HAEEL'BACHUSETTS.

To all whom may] come 12m: A immune P. Ronmeon, Unilecl States, reeiliing in Maiden, in llie eonna-y of Iiiilli and; Shine of lv'ieesziehns have invented an improvement in Contioiiing Devices; for Power-Driven I, o 2 which ifhe following description, in eornieeiion with he nocoi'npanyingg' drawings, ie a specific elem, like letters on the (il'flWlllgS reple like parts.

The pveseir invention relates no a controlling device for a power driven gear, such as reversing gear for steam or gas nginee, eke-inn .eteering gear, or the like, in which it is desirable or necessary to hold the gear at times in intermediate positions.

In accordance with the inven'hion, a fluid pressure motor such as a cylimiei' and ieeipmeeting piston provided with a reversing '51 valve is employed, the pisiion being directly conneel'ed Wiih the gem which to he iii known. iiiat 7 Be a citizen of the driven, and the reversing valve being under control of :1 primary actuating device or revereing; lever. it Wiii be hereinafter termed. Th arrangement is such thaf; a pveli'sninnny movement oi? the reversing lever in one direesion o1" zhe ()iillJL from the n1ifl-p0sition fully opens the reversing valve to bring}; ehoui lhe (esired movement under full pressure, the actual. IDOVQIHGHlZ, however, beil'ig' controlled by a stop member who ereting with the parts operated by the pie ton. In oiwier'to control the extent of move: ment and the final nvention of the parts eonneeted with the piston, the position of the slop member is proggiessively vhanged. so that iheiextent of movement of the gear depends upon the extent of movement of the stop members, while the said gear held in the desired posit-ion my the slop member when the latter stationary. The said stop n'ieinber is adapted to be operated by u. re ver ing iever, provision being made For losiv motion in the connection between said stop ineinhei and said lever, on tha't the opemi-ion of 153m levee on the reversing valve of the motor is eompleieri before L-llG-HlOVGIIiGfit of the stop member begins.

Figure l is an elevation of a controlier embodying my invention, partly in section; Fig. 2 is ever ticel sect-ion, partly in elevaooking toward the of Mll'i are views similar, rea i ii 's {Lilli 2'', showingthe l iiil ferent position; is u. seeeiinilni' to the upper pni'l; of Fig. fully, inste, l of partly, in see 0". 6 an elevation, similar to owing modification.

l understanding;-l2hzit the invention (an be ZE-(iizNQlTGLl for," use in connection with any powe driven gear, such as the sterling and reversing mechanism of an inkernel eon'ibusiion" engine, the fink-motion of a steam engine, the operation oi heavy gale valves, (TIC-7 I have shown the invention, for purposes of illustration, as 31- rnngeii and adapted for use with the ordinery iiiil: inorion employed in connection with steam engines.

It;- is not deen'ied necessznjx to show the well-known link motion itself, it being sufli eient for the underetanding'of this invention to state that the rod 1 is connected with the shifting part of the link motion, the said rod 1 being opemlied by an elbow lever 2 which arisipied to he rocked on, its pivot; through the agency of a eonneming rod 4 connected Willi the piston rod 5 of the piston 3. The piston 6 is located in a cylinder 7 and is adapted to be i'eeiprocated through the action of fluid pressiire admitted of opposite sides thixngh inlet; ports 8, between which ii an exhaust port 9, these ports being C(Hltl'UiiCiii by the ordinary reciprocating l1- 'VHiVC 10, that the piston Will tend to he moved in one direction or the other, or to in ziecoriizn iee with the vemiin slnlionei' posilion of the ii In aceordimee with the present:- invention, the extent of movement oi the piston and the parts operated thereby, and the position in which they ennui, are positively deter iiiineil by :i stop member 12. which is herein shown :15 a li'nveling; mm adapted to he opemitell by (he reversing ievei' 13, Liter the il 'mlve has been operated by 552M iever To admit pressure to the cylinder.

in the mnsn'uelion shown. i'he ti -valve i0 is eonnw m by means of a rod 14 with an elbow lever if) pivotally supported at 16 in a hanger ewured on 2iv etationary arm oraxle 17 which projects outward from the or" the main frame and constitutes toe support for the several conirolling ices emploved. One arm of said elbow is forked and provided with "nvardiv projecting pins 18 which enier eni'iular groove 19 in :r longitudinally me her 20 spliced on the hub member 1's. The longitidinel BilOViBZilL-Ilior the said member 20 .Vill l the el bow lever 15, operates 'e, is brought about by a preliminary movement or" the reversing lever 13 which takes place before any movement imparted to the stop member. To provide for such preliminary movement, and at the same time to utilize such movement, for the operation of the 53- valve, the reversing lever 13 has a hub 22 mounted on the hub 21 of the stop member 12, as be to rot-ate thereon, and this hub 22 is pro ed with inclined cam which projections no members of a fork connected with the movable member :20. co the said member splined on the r Whicl stop member during preliminary 1 "61116 is stationary, it is obvious that the indepeent inoveinens of the lever through action of the cam grooves Will'throw the elbow lever in one direction or the other, thereby opening the E valve, The 'z'oove and pin connection between the niovsble'men'iber and the elbow lever 15, allows the said movable member to rotate with the s'top meniber 12 the reversing lever has been actuated without producing any change in the position of the elbow lever, in response so the preliminary movement of ihe reversing lever, as above described, pressure is to one end orihe other of the cylinder '2, and tends to produce movement, of thepiston ti and connecting od in one direction or the other. The 'ncvements of these par-'25, however, are mechanically limited and controlled by the movable stop member 12 clove mentioned, which herein shown as rotatable on an e is concentric with that of the reversing lever 13, end as e "eve enby s 11 c nnecting rod 41. The arrangement 1" such thatafter the Eli-valve has b ned the reversing love the sx Wil become connected or en eg movable stop member 12, 'thet s un movement of the said lever will produce a movement of the stop member one s the position thereof ele'? iih ed l. Such of the gear 1 'ersin lever noee iee is determined by the shape of the cam groove,

As best shown in Fig. l, the stop member 12 is provided with a radial projection 27 which has shoulders 28 and 29 lying in the path of the reversing lever 13, and being sullicient-ly for from the middle position of said lever to admit of the preliminary inde pendent movement which controls the D- vulve. A: the end of the preliminary movement, one or the other of the shoulders is en gaged by the reversing lever, so that a for ther movement of said lever in the same direction Will. carry the stop member with it.

In the position of the stop member 12, shown in Fig. 3, for example, the shoulder has been engaged by the reverse lever 13, and the stop member 12 has been moved to its full extent in the direction to carry the link motion to the full gear ahead position; but the reverse lever 13 is shown as in the position it- Will be moved to when the engine is to be linked up, stopped, or reversed, the said lover being in contact with the shoulder 29 so that its further movement will carry the stop member 122 back toward the posi tion shown ig. 1. During such movement, the rod will be caused by the pressure in the cylinder 7 to move so far as the stop member will allow, and it Will be held in Whatever position. it, may be in when the movement of the reversing lever is stopped.

In order to lock the stop member in such running positions es are roost commonly latch 30 carrying a latching projection 1 is mounted in guides 32 on the part 21, the said latching projection being adapted to engage with notches 33 formed ina segment suitably connected to and forming a part e f the frame in order that the said latch 30 may be conveniently operated in connection with the operhtion of the reversing lever Without, hov ever, interfering with the preliminary movement thereof between the shoulders 28 and 29, the said latch is provided its upper end with a grooved segment 36 in which engages a projection 37 secured to the actuating lever, and connected by a link 38 with a grip handle pivoted at e0. in the preliminary novement of the reversing lever which co trols the Ti-valve, the projection 3? slides in the groove of the segment 36, remaining, however, in operative engagementthe latch.

tel 0 restore thi? hzmdleio miiqmsition, thus causing the Ehvrilve to sins-e both of the steam inlet; to the cyiinc'ier '2 the re veltsing gear, in any event, being 19! in the position desired. through Kim cy oi the stop member In View of t-hi practice, the reversing lever is pmvidml with a 101 ingspring catch -21 t0 hold ii in 31L tion.

To is obvious that [my suitable connecb mg means ine raw-3' sing; lever and mechanlsm ape med thereby can be lecaied dlstancg imm aha savers device ch is 11 50111 I i" a f" 11101; we a? HEJVQMIV '0}? member 152: Wmh re 11- verging 5cm? the combmuti I example, tha 3 5 .Gei W15- the shoulders 2/3 uii es-mg d arecfly h andiwmmg a part Fun. 3

0f 12% step mvnm 2, is mmw-iwi L116 said 3630p hmuglh a stop member be? j epzaraflieiy d at This link MHYWD as connec'bing Fildii prqjectiam and! i5 fmrmu'l respsc zivsly on the part 2? a v". tll a shop mamber n that by chziy a inhase imam; 9m-

ectzons saadlhcd mevamentof; ihe Sta n 9 L L some nesting mashamism mg the nmvment 0f the, traversing war 0 aha s'wp member.

Since the pas-M921 0f the gear is Divaixzflly cont-rolled by 0}; member, it is 'Wi that the gearcan bs actuated by the $0; member ilLCOSB the, power fails. The part are alvays interconnect-ed and under of tha reversing leyer Whether t e power i available 1-1 1101;. The smfnce 0-11? the 5&0 member prsfembl' "dually incline mm the poveiwactua ed pishz: will not 9. itself impart. motion Lu 21m said. II .n hmvemi', the eallop member shank overtmve the rave 'sing lever, 1 6., continue t0 move thnmgh the action of pq'essure afier the reversing lever has been stopped at the position desired, the movenwni of the s'wpanmmbe relative to he reversing lever would close the .x-evorsing iB-vaivc am. shui, 0%,? the power. I

Wind 1 claim is:

1. A controller for a, powel driven gear, such as a reversing gear "which has fluid 'n'essure motor dirviily connected therewith, the saidcmnmlhar uunsis ving 0f means folconirolling the. miniission or pmssura to the 1110601300111 u a traveiing 5L0 mum bu CObPBl'iliiXL the ear 'wlmn acted upon by the pressum 1'20 lu'nit the movement 'ihercof.

A. cvmtmiiw for such as a comp: 1 confirm motor; means g 552m; v2; and 75 V bean means uggcm 1/ iuhy epenecv 1'18 8 12. 3 v 4 111.13; Un vement 0L mm acme. up fine 2mm e mum is in 0:5? the haven 'Efhe cm: 11 a.: 1 a powsuch "Cf-Sing w cmmactsd til Shawl 6 1 me umflmcn" t; Bald shoulders,

..;1ea11 for gear to as- 1e extent 0f y Lila m Zion oi the stupaxnaber, a fisid-pfesure motor adupmd :0 act directly on. file gear; a m arising valve for said motor; aud menns for operating said reversing "aha prim to the movement 0f the st0p-.. ember.

"n a controlling mechanism for rex'ers- Tinned movement thereof after the reversing 11011;; whereof, 1 have signed my i v e nmtqr cluuctly connected to i in tvst 0i a reversing vzfl've for said :110- mum u:- m; .sp 'ficatiou in the presenw of \q-ersl lever adapted to opemie sand W0 snbsm'llmg mtnesscs.

Xfitncsses JAS, J, MALONEY, M. COVERLY.

and means; fur operating said stopanember 16 by the xrcversmg lever 111 response to a con- 

